// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef UI_SNAPSHOT_SNAPSHOT_ASYNC_H_
#define UI_SNAPSHOT_SNAPSHOT_ASYNC_H_

#include "base/macros.h"
#include "cc/output/copy_output_result.h"
#include "ui/snapshot/snapshot.h"

namespace base {
class TaskRunner;
}

namespace gfx {
class Size;
}

namespace ui {

// Helper methods for async snapshots to convert a cc::CopyOutputResult into a
// ui::GrabWindowSnapshot callback.
class SnapshotAsync {
public:
    static void ScaleCopyOutputResult(
        const GrabWindowSnapshotAsyncCallback& callback,
        const gfx::Size& target_size,
        scoped_refptr<base::TaskRunner> background_task_runner,
        scoped_ptr<cc::CopyOutputResult> result);

    static void EncodeCopyOutputResult(
        const GrabWindowSnapshotAsyncPNGCallback& callback,
        scoped_refptr<base::TaskRunner> background_task_runner,
        scoped_ptr<cc::CopyOutputResult> result);

private:
    DISALLOW_IMPLICIT_CONSTRUCTORS(SnapshotAsync);
};

} // namespace ui

#endif // UI_SNAPSHOT_SNAPSHOT_ASYNC_H_
